Translation and psychometric assessment of the Persian version of the Rhodes Index of Nausea, Vomiting and Retching (INVR) scale for the assessment of chemotherapy-induced nausea and vomiting

Moradian, Saeed and Shahidsales, S. and Ghavam Nasiri, M.R and Pilling, Mark and Molassiotis, Alex and Walshe, Catherine (2014) Translation and psychometric assessment of the Persian version of the Rhodes Index of Nausea, Vomiting and Retching (INVR) scale for the assessment of chemotherapy-induced nausea and vomiting. European Journal of Cancer Care, 23 (6). pp. 811-818. ISSN 0961-5423

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Abstract

No tools are available to assess or measure the experience of chemotherapy-induced nausea and vomiting (CINV) for Persian/Farsi speakers. The purpose of this study is to translate the Rhodes Index of Nausea, Vomiting and Retching (INVR) scale for use with Persian-speaking cancer patients. A sample of 94 cancer patients were recruited from a cancer research centre in Mashhad-Iran. A standard two phase process of scale translation and validation was conducted. In phase I, standard 'forward- backward' translation procedure was used to translate the original version of the INVR questionnaire into Persian. The translated questionnaire was reviewed and revised and a Persian version of the scale was produced. In the second phase, a multiphase instrumentation study describing the internal consistency and test-retest reliability of the translated version was conducted. The inter-item correlation measured by Cronbach's alpha was 0.88. Test/re-test reliability was measured by the weighted kappa and was between 0.63 and 0.79, indicating 'substantial agreement' and stability between the initial and subsequent administrations for each item. These results demonstrate that the Persian version of the INVR is acceptable for use among Iranian cancer patients. Researchers could use this study as a model for future translation and application of psychometric instrumentation.

Item Type:
Journal Article
Journal or Publication Title:
European Journal of Cancer Care
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2700/2730
Subjects:
ID Code:
67336
Deposited By:
Deposited On:
30 Oct 2013 11:02
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Jan 2020 07:39